Heat-insulated container



Dec. 14, 1926.

H.'M. SMITH HEAT INSULATED conmmnn Filed May 12, 1924 A TTORNE YJ' Patented Dec. 14, 4 i

HERBERT M. SMITH, or GREAT'BAR INGTON, MASSACHUSETTS, nssrenon :ro STAN- LEY INSULATING- COMPANY, rona'rlon cr teria-E,

Application filed May 12,

My invention relates to heatinsulated containers, and has special 'referenceto such relnforced byits lap jointwith the flange 8 containers that are in the'iorm of a jug. I

The object otthe invention is'to provide a container of this character which'is simple, inexpensive, strong and durable in construction, and convenient-and efflcient in use.

The following is a description of an embodiment of my invention, reference being had to the accompanying drawings, in which, I i I Figure 1 is a vertical sectional view, partly in elevation, of the upper portion of the container in its preferred form; and

Fig; 2 is a plan view of-the same, partly in section and partly broken away. v

The container illustrated in thedrawings is in the form'ot' a one gallon jug, and has a body portion comprising two shells 2 and a of sheet metal which are arranged one within the other and spacedapart. The upper end portions of both shells are bent inwardly, as shown, and their inner edges are bent upwardly to form cylindrical flanges 6 and 8,1'espectively. Thelower end portion of a threaded'sheet metal sleeve 10:

fits over andis welded or otherwise tightly secured to the flange 6 of the outer shell,

This lower end portion ofthe sleeve 10 is enlarged so as to provide ashoulder 12, and

i the portion of the sleeve abovethis shoulder forms the outer Wall of the neck of the con- The scopingly receives the lower end'of an upwardly and outwardly tapering vsleeve 14 which forms the innerwall of the neck of;

the jug. yThe' upper edge portion of the sleeve 14 is bent outwardly and downwardly to provide a depending flange 15, which is welded tothe inner marginofthe upper edge of the outer sleeVe'lO so as'to close'the space atthe upper end of theneck between the sleeves. Thisupper edgeor'lip of the neck is reinforced by an annular truss member 16 which is U-shaped in cross section and is fitted between the depending flange 15 and the body of the inner sleeve 14, the member being securely held by welding or otherwise. The inner sleeve 14 is of relatively thin sheet metal in order to. give a high thermalrresistivity, and it will be apparent that with the described lipconstru'ction the upper end of this inner, sleeve is OF GREATBARRINGTON, MASSACHUSETTS, A COR HEM-menus]; CONTAINER;

on the inner shell 4. The spaces between the shel1s 2 and 4, and between the walls of the neck is fllledwith' a suitable heat insulating material 17.

18 comprising a closed sheet metal casing which is made up of a cup-shaped member it. i 1

22 having a downwardly curved bottom we} I and havlng an outwardly flaring flange "atits upper end." The stopper casing-is ;,fTh'e opening in the neck or-the jug isclosed'by a removable looselyfitting stopper further provided with a dish-shaped cap 1,6

which fits over the edge of the flange 2a, the edges ot the cap and flange being beaded together, and reinforced by a truss ring 28 on the inside of the bead of said flange.

cap 26 is providedwith a central opening,

the margin of which is provided with a flat ralsed-annular'portion 32, a depending port1on3t,-and the extreme lower edge of the wall of the aperture is bent inwardly to pro? vide a narrow substantially, horizontal flange 36. The stopper casing is filled with slightly. compressed insulating, material 38 for the purpose of-red-ucing convection currents andfor forming a heat barrier. After the insulating material is thus placed in the casing, a pressure pad 4001" rubber, constitutlng a vplug, 1s iorced into the open ng,

causingaflange 41 onthe upper end oi the pad to be seated on the flat annular raised,

portion 32, and the narrow flange 36 to cut intopr be; embedded in'thev rubber, thus makmga tlght fit. Before thepressure pad is inserted, it is covered with anon drying 011, such as castor oil'wlnch forms'a tight bondbetween therubber and the metallic surface, preventing the seepage of :water or The other liquids intothe stopper casing.

inner side of the stopper casing is coated j wlth vitreous enamel vfor the purpose of giv- I ing it mechanical strength and decreasing its heat COIlduCtlVlty, and the outside 18 similarly coated for thepurpose of preventing rust and making it sanitary. When theistopper is inserted, a'rubber gasket 42 is placed between the flange at the upper end of the stopper and the rim of the neck of the jug.

.A cup-shaped member 44 of resilient sheet metal is provided having a bottom wall 46, and" a skirt'or flange 48. The bottom wall 46 is provided with a fiat central portion 50 and an annular raised portion or corrugation 52 surrounding said central portion. The lower edge of the flange or skirt 48 'is turned over to provide a beaded rim 53, and the lower portion oi the skirt has screw threads 54 formed therein. The cup 4% is placed over the neck of the jug and is screwed down, by the engagement of the screw threads 54 with screw threads formed in the outer wall or sleeve of the neck, until the bottom wall of the cup by engage ment with the pressure pad 40, compresses the rubber gasket 12 sufficiently to ensure a tight jointbetwen the stopper flange and the rim of the neck of the container The annular corrugation 52 int-he bottom wall of the cap is for the purpose of stifiiening'the wall, and giving it the proper diaphragm orspring action necessary to hold therequired pressure on the stopper, and to compensate for the expanslon and contraction of the cup when it"is subjected to suddeii'changes in temperature; for example from a shaded low temperature to the intense rays of the sun.

The metallic parts are preferably made of sheet steel.

As will be evident to those skilled in the art my invention permits of various modifications without departing from the spirit thereof orthe scope of the appended claims.

l Vhat I claim is:

1. A container of the class described having in combination, a body portion and a neck portion, a stopper comprising a closed top ofsaid-plug.

A container of the class described having, in combination, a body portion and a neck portion, a removable stopper compris ing a closed casing of sheet metal having heat nsulating material in granular form iilling said casing, having a reduced portion extending into said neck portion, a flange extending over the rim of said neck portion and a. central opening in the top thereof, a plug or resilient material forced through .said central opening so as to cause its lower portion to be imbedded in said granular insulated material, said plug being secured to the wall of said. opening and projecting a distance above the top surface of said casing, and a cup-shaped member screw-threaded over said neck portion and havingits bottom-wall engagingthc top of said plug.

HERBERT M. s rrn. 

